Justification:
This species is known from three separate sites: the lower Matiza/Evros river in Greece and Turkey; the Karadere stream (Kocacay River) at the outlets of Manyas Lake; and outlet of Apolyont Lake, Turkey. The species is severely impacted by water abstraction and pollution, its area of occupancy is less than 500 km², and it occurs in only three locations. Therefore it is assessed as Endangered.

Lower Matiza/Evros river in Greece and Turkey, and the Simv drainage, where it has been found in the Karadere stream (Kocacay River) at the outlets of Manyas Lake and the outlet of Apolyont Lake, Turkey.

The Matitza/Evros river is impacted by pollution from agriculture and industry and salt water intrusion when flow is reduced. At the other locations flow regulation due to water extraction and heavy industrial and agricultural pollution threaten the species.